Brake shoe



Apr. 10, 1923 1,451,599

I E. C. TEAGU'E BRAKE SHOE Filed Apr. '18, 1922 '2 sheets-shcct'l attoz Mq Apr. 10,1923 1,451,599

E. C. TEAGUE BRAKE SHOE grwchloc I (Jr/gag.

v AA 3- Patented Apr. 16, 1923.

EDWARD 0. reason. or KAnsAs CITY, MISSOURI.

BRAKE SHOE.

Application filed April 18, 1922. Serial No. 554,355.

To all whom it may concern:

Be it known that EDWARD C. Tnneon, a citizen of the United States of America, residing at Kansas City, in the county of Jackson and State of Missouri, has invented new and useful Improvements in Brake Shoes, of which the following is a specification. i

The object of the invention is to provide a brake mechanism having a shoe which can not readily be detached from the head and which is not necessarily detached from the head in order to relieve a hot box,

andwhich if detached does'not involve the displacement of the means whereby it is secured in place, so that the disadvantages encountered underthe present practice of removing the shoe by the trainmen is attending. to a hot box and the failure to replace the shoe or the loss or mispla'cement of the key, in that connectio nmay Jbe obviated, and the resulting accidents and damage incident to such oversight or neglect maybe prevented; and with these objects in view the invention consists in a construction and combination of parts of which a preferred embodiment is shown in the accompanying drawings, wherein:

Figure 1 is a plan view of a brake mechanism involving a brake shoe constructed in accordance with theinvention.

Figure 2 is a side view of the brake mechanism.

Figures 3 and 3 are detail views in perspective looking at opposite sides of the brake head.

Figure 4is a similar view of the brake shoe.

Figure 5 is a detail sectional view taken; vertically through the head and the attached shoe and in the plane of the spring actuated locking pin.

The brake beam 10 having the usual truss brace 11 is provided at its extremities with the brake heads, each of which is supported by hangers 13 as in the ordinary construction and is providedat its upper and lower ends with forwardly extending lips 14 and 15 and with an intermediate transverse seat 16. Theb'ra'ke' shoe'l'Z is-constructed to seat at its'lower end on the upper surface of the lower lip 15 of the brake head and is shouldered as at 18 near its upper end to extend under the upper lip 14 of the brake head, the upper extremity of the brake shoe as indicated at 19 being arranged in overlappingrelationwith the edge of said upper I 1 lip. Also at an intermediate point the brake shoe is provided with a tongue 20 to fit into the seat 16 of the brake head and thus constitute an interlocking engagement therewith to provide against relative longitudinal or up and downdisplacement of the head an shoe.

Mounted in the forwardly directed upper lip 14 of the brake head is a locking pin 21 permanently secured against displacement and provided with an actuating spring 22 serving to yieldingly hold the pin in an inwardly extended position with lts extremity in socket 23 formed in the shoulder ried by the lower lip15 ofthe head is an u the former with the the upper end thereof pin. To dismount the shoe from the head it is, therefore, necessary to first raise the looking pin sufliciently to disengage it from the s0cket-23 and then swing the upper end of the shoe away from the head sufficiently to withdraw the shoulder 18 from beneath the lip 14 and pin remains in place and is, therefore, not subject to'displacement or loss through accident or neglect, and when in' engagement with the shoe the pin isnotsubjectto displacement by vibration with fore to remove the shoe in giving attention to e a hot boxor other matter relating to'the rungear of the car is reduced and when '7 such displacement is necessary it is obvious that the misplacement or loss of the locking.

special manipulation thereof is required.

, Furthermore the weight engagement with a 18 near the upper end of the shoe while carat the same time withdraw the tongue 20 from engagement with the seat 16 whereupon the shoe may be lifted out of en gagement with the stud 24, butv the" locking the consequent risk of droppingthe shoe and causing derailment. The tendency of trainmemthere- 6;

or resultant tendency to replace the shoe 5 ,7 without properly looking it in its position is due to the fact that an interlockp v I ing engagement of the shoe necessitating' a' 11107 of the shoe iscar f ried directly by the head and is not depend i ent upon the key or locking pin so that a locking means of comparatively light construction may be utilized in this connection whereas displacement of the shoe is less likely to occur.

Having described the inventioin what is claimed as new and useful is 1. A brake mechanism having a head and a brake shoe reniovably seated upon and having an interlocking engagement therewith, and a spring actuated locking pin for securing the shoe in its interlocked relation with the head, the head having upper and lower forwardly projected lips of which the latter is prorided'with an upwardly ext-end ing stud for engagement with a socket in the lower end of the shoe, and the former carries the locking pin for engagement'with a socket in an underlapping shoulder of the shoe.

2. A brake mechanism having a head and a brake shoe removably seated upon and hav' ing an interlocking engagement therewith, the head being provided at its upper and lower ends with forwardly projecting lips and at an intermediate point with a transverse seat, the shoe having its lower end seated on the upper face of the lower lip EDWVARD C. TEAGUE. 

